Israeli Iron Dome was being tested in the area where EgyptAir went down, on the same day it went down.

Quote:

Barbara Opall-Rome, Defense News 12:08 p.m. EDT May 18, 2016

“I can say all the threats shot toward our assets were targeted by the Adir radar — one of the most advanced naval radars that exists today — and interception was accomplished by Iron Dome,” Shir told reporters Wednesday.

Shir declined to specify how many or what type of threats were intercepted by the new sea-based defensive system

Produced by Rafael Advanced Defense Systems, the Iron Dome batteries have gained years of experience in three conflicts with Gazan terrorist organizations, and have undergone a series of upgrades, which remain largely classified.

The IAF has also improved its ability to integrate Iron Dome with other air defense systems.

“All of these things create a single, integrated air defense system,” Haimovich said.

Iron Dome will soon be joined by David’s Sling, which will shoot down short to medium- range rockets and ballistic missiles, guided projectiles, cruise missiles, aircraft and drones. Its range of coverage means it can destroy incoming threats over enemy territory, away from Israeli skies, and it is due to go operational in the coming year.

Arrow-2, which destroys ballistic missiles in the upper atmosphere, is already operational, while Arrow-3, designed to destroy ballistic threats in space, will also soon officially go online.

“There’s no single date for when David’s Sling will become operational.